DevilRising on 21 November 2013
The Gamecube actually had really good third party support. The idea that it didn't is a myth. The N64 had terrible 3rd party support as far as ports, but some really good third party exclusives. The GC kind of had the opposite problem, where it actually got a decent amount of multi-plat titles, but outside of a handful of notable mentions, a lot less third party exclusives.
Either way, it holds little bearing over the current state or future fortunes of the Wii U.
